What horrible things happened to Jack after being rescued that he’s a suicidal addict?
Apparently the apple doesn’t fall far from the tree. Jack’s father, Christian Shepard, was a raging alcoholic. Jack, in his post-island future, guzzles liquor and pops stolen pain pills like candy. And let’s not forget that he almost jumped off a bridge - and not even into water, it looked like concrete down below. He was certainly ready to die.
On the island, we know that Jack has made contact with Naomi’s boat. We don’t know who is on that boat, their motivations, what their instructions are… we don’t know what’s going to happen. The crash survivors believe they are going to be rescued. With three seasons to go, we know it can’t be as simple as that. Something bad is going to go down.
How many more of our survivors are going to die before anyone leaves the island? Charlie is the latest casualty, and Jack doesn’t even know about that yet. Although he admitted it was a suicide mission from the beginning. Could survivor’s guilt be enough to push Jack to this bleak future?
Or maybe the rescue that Jack longed for so much turned out to be like Hurley’s lottery winnings. Maybe what he thought was going to be such a good thing only led to negative consequences for the people around him. We don’t know who was in that coffin, but we know that Jack considered himself neither friend nor family. And yet he felt compelled to make an appearance. How many other funerals had he been to recently?
Whatever has happened, Kate doesn’t seem to have been affected by it. Is it because Jack was the leader, and therefore feels responsible for everything that happened? Is it because of the call he made that both Ben and Locke told him not to make? Maybe there’s going to be more blood on his hands than we know.
One thing is for sure, we’re going to have another three intense seasons to find out what happens in between the on-island “now” and the off-island future.

